340848421 has 4 divisors (see below), whose sum is σ = 341323200. Its totient is φ = 340373644.

The previous prime is 340848359. The next prime is 340848449. The reversal of 340848421 is 124848043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340848421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340848481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236311 + ... + 237748.

It is an arithmetic number, because the mean of its divisors is an integer number (85330800).

Almost surely, 2^340848421 is an apocalyptic number.

It is an amenable number.

340848421 is a deficient number, since it is larger than the sum of its proper divisors (474779).

340848421 is an equidigital number, since it uses as much as digits as its factorization.

340848421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474778.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 340848421 is about 18462.0806248917. The cubic root of 340848421 is about 698.5332696802.

The spelling of 340848421 in words is "three hundred forty million, eight hundred forty-eight thousand, four hundred twenty-one".